Thematic strategies Dot Density, Categorical Symbolization & Proportional Symbolization
- Nominal vs continuous data types:
- John Snow Cholera Map - 1 to 1 relationship:
- 1 coffin = 1 death. This is NOT an example of Dot Density (dot density will be demonstrated in Class 3 | Lab 2):
- US Census data - 1 to many relationship:
- 1 categorized dot = many persons per racial category: